Content

Part A1
Network Diagram: AoA or AoN?
1. Introduction …………………………………………………………………….…. 2
2. Comparison Between AoA and AoN …………………………………….……….. 2 3. Network Diagrams with Educational Oriented Discussion …………….…………. 3
4. Conclusion ………………………………………………………………………… 4

Part A2
The machine tool overhaul project
Network diagram …………………………………………………………………….. 5

Part B
Lean Concept: Value Stream Mapping (VSM) 1. Introduction ……………………………………………………………………..… 5
2. What is Value Stream Mapping ……………...…………………...………………. 5
3. Why Choose VSM and What Are The Benefits ……….…………………...…….. 6
4. Criticism of VSM …………………………………………………………………. 6
5. Conclusion ………………………………………………………………...………. 7

Reference …………………………………………………………………………….. 8

Part A1
Network Diagram: AoA or AoN?

1. Introduction
The network diagram provides project managers with information about how the tasks are connected, how long will each task takes and shows all the tasks in the sequential or concurrent way (Taylor, 2008). There are two common methods for constructing network diagrams which are activity-on-arrow (AoA) and activity-on-node (AoN). However, these two methods have some fundamental differences and in practice, the question that which is better, has been asked on many occasions. Hence, this part of essay will analyze the differences between AoA and AoN and carry out some research that why they are different. In addition, these two choices of network diagrams will be illustrated under the academic circumstance and finally, end up with conclusion.

2. Comparison between AoA and AoN
Activity-on-arrow diagram provides project planners with a useful tool to express the logical process of work plan for their project. For example, due to AoA diagrams use arrows to indicate the flow of work and time, they can be relatively translated to time-scaled network that assist project planners to